APA-referens

Coddington, E. A., & Levinson, N. (1955). Theory of Ordinary differential equations.

Chicago-stil citat

Coddington, Earl A., och Norman Levinson. Theory of Ordinary Differential Equations. Bombayh, Tata Mc Graw Hill Publishing Company Ltd, 1955.

MLA-referens

Coddington, Earl A., och Norman Levinson. Theory of Ordinary Differential Equations. 1955.